Sterilizer.



v Mmmm MAY '14. 1907.

' w. cAsTLE.

STERILIZER.

unieuro! FILED 11.13.10.1905.

A FIG-.2.

"TNVE NTORI mfjf FIGA.

wlTNEssEs 5M/2 'd- ,f 914m/ '1HE mmms persas co., WASHINGTON, n. c.

' to register with the perforation 18.

5 is an Outside view of the valve.

gral with the jacket wall 5.

UNITED STATES PATENT OFFICE.

WILMOT CASTLE, OE ROCHESTER, NEw YORK, ASSICNOR To WILMOT CASTLE COMPANY,OE ROCHESTER, NEW YORK, A CORPORATION OE NEW YORK.

STERILIZER.

Patented May 14, 1907'.

Application filed March 16,1905. Serial No. 250.435.

Be it known that I, WILMOT CASTLE, a citizen of the United States, and a resident of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Sterilizers, of which the following is a Specification.

This invention relates to sterilizers, and particularly to an improved valve therefor.

Tnthe drawings z-Figure 1 is a longitudinal vertical section of a sterilizer provided with this invention Fig. 2 is an inside view of the end of the valve; Figs. 3 and 4 are central vertical sections through the valve, showing the sarne in two different positions; and Fig.

The base 1 is adapted to contain water, and is entirely open on top, except that around the edge is a groove or trough 2 adapted to Contain w-ater and to form a water seal around the lower edge of the sterilizer body 3. The sterilizer body has the inner chamber 4 and the outer jacket 5, whose lower edge 6 rests in the groove 2 and is sealed by water therein. The steam space 7 between the inner chamber 4 and the jacket 5 is closed at the top, as at 8. A suitable cover 9, preferably hollow, for insulating purposes, is provided for the chamber 4, and is provided with a suitable outlet 10, which may be closed by a plug 11. Through the jacket 5 and the wall 12 of the inner chamber 4 are provided certain valve mechanisms, as will now be described. To the jacket 5 is fastened the plate 13 having a perforation 14 therethrough. Of course, this perforation may be rnade through the jacket 5 itself, and the separate plate 13 merely becomes inte- Against the surface of a plate 13 rotates the valve disk 1-5, having an opening 16 therein adapted to register with the perforation 14. This opening may be of any suitable length, but the preferred form shown is substantially an arc of 300 drawn from the point of rotation of the 'disk 15. Either integral with or attached to the wall 12 is another plate 17, suitably perforated, but in the present case shown as having the slot 18 extending through substantially a quarter of a circle drawn from the center ofthe plate 17. Against the plate 17 rotates the disk 19, suitably perforated, so as In the present case the disk 19 has the three perfol rations 20, Fig. 2, each one of which may register with the perforation 18. A single perforation is to be considered the equivalent of the three perforations 20. The disks 15 and 19 are fastened upon a spindle 21 having the handle 22, and rotate together. The perforations 1.6 and 2() are on the saine side of the center of rotation and practically opposite each other, but the perforations 14 and 1.8, in the stationary plates or walls, are arranged on opposite Sides of the center of rotation, so that when the perforation or perforations 2() register with the perforation 18 to open a passage through the inner wall 12 to connect the space 7 with the interior chainber 4, the Opening or perforation 14 through the outer wall of the jacket 5 is closed. This position of the parts is shown in Fig. 3. But when the perforations 14 and 16 register and connect the space 7 with the outer air through the wall5, the perforations 2() and 18 do not register and the connection between the space 7 and the. chamber 4 is out off.

A deilector 23 is applied to deilect any steam that may issue through the perforations 16 and 14 away from the hand, while operating the handle 22.

What I claim is A sterilizer comprising a boiler having openings in one of its walls, an inner vessel within the boiler having openings in one of its walls and out of line with those in the boiler, and a revoluble valve having'disks spaced apart and respectively seated against the said walls of the boiler and inner vessel, and having Openings to register with those of said walls, so that when the valve is turned to cause the openings of one of its disks to register with those of the contiguous wall against which it is seated, those of the other disk will be out of register with those of the contiguous wall against which said other disk is seated, and so that the valve may be turned to put the openings of both of its disks out of register with those of both of said walls, said valve hence enabling steam to be discharged from the boiler either into the inner vessel or the outer air and also enabling Stearn to be confined in the steam space of the boiler, for the purpose set forth.

WILMOT CASTLE.

Witnesses:

D. GURNEE, L. THON.

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